Chelsea and Marc walking down Park Avenue in May 2006. [Photo via Bauer-Griffin]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc walking down Park Avenue in May 2006. [Photo via Bauer-Griffin]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc walking down Park Avenue in May 2006. [Photo via Bauer-Griffin]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc walking down Park Avenue in May 2006. [Photo via Bauer-Griffin]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc walking down Park Avenue in May 2006. [Photo via Bauer-Griffin]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc near Union Square in December 2006. [Photo via Bauer-Griffin]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc near Union Square in December 2006. [Photo via Bauer-Griffin]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc near Union Square in December 2006. [Photo via Bauer-Griffin]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc at the Clinton Global Initiative closing session in September 2009. [Photo via WENN]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc at the Clinton Global Initiative closing session in September 2009. [Photo via WENN]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow

Chelsea and Marc at the Clinton Global Initiative closing session in September 2009. [Photo via WENN]

Related: This Is Where Chelsea Clinton Is Getting Married Tomorrow